31050320

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{89}}^2$

素因数の和:205

約数の個数: 90

約数和(自身を含む): 84932622

約数和(自身を除く): 53882302

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 89, 98, 112, 140, 178, 196, 245, 280, 356, 392, 445, 490, 560, 623, 712, 784, 890, 980, 1246, 1424, 1780, 1960, 2492, 3115, 3560, 3920, 4361, 4984, 6230, 7120, 7921, 8722, 9968, 12460, 15842, 17444, 21805, 24920, 31684, 34888, 39605, 43610, 49840, 55447, 63368, 69776, 79210, 87220, 110894, 126736, 158420, 174440, 221788, 277235, 316840, 348880, 388129, 443576, 554470, 633680, 776258, 887152, 1108940, 1552516, 1940645, 2217880, 3105032, 3881290, 4435760, 6210064, 7762580, 15525160, 31050320]

約数ペア:

[(1, 31050320), (2, 15525160), (4, 7762580), (5, 6210064), (7, 4435760), (8, 3881290), (10, 3105032), (14, 2217880), (16, 1940645), (20, 1552516), (28, 1108940), (35, 887152), (40, 776258), (49, 633680), (56, 554470), (70, 443576), (80, 388129), (89, 348880), (98, 316840), (112, 277235), (140, 221788), (178, 174440), (196, 158420), (245, 126736), (280, 110894), (356, 87220), (392, 79210), (445, 69776), (490, 63368), (560, 55447), (623, 49840), (712, 43610), (784, 39605), (890, 34888), (980, 31684), (1246, 24920), (1424, 21805), (1780, 17444), (1960, 15842), (2492, 12460), (3115, 9968), (3560, 8722), (3920, 7921), (4361, 7120), (4984, 6230)]